Star of Bethlehem

This plant has a lot of names.

Garden Star-of-Bethlehem
Sleepydick (inner 12-year-old snickers)
Grass Lily
Summer Snowflake
Snowdrop
Starflower
Bird's Milk
Chinkerichee
Ten-O'Clock Lady
Eleven-O'Clock Lady (I am guessing this name is used by folks living in a state that uses Central Mountain time?)
Nap-at-Noon (West of the Rockies?)
Bath Asparagus
and Star of Hungary

The names that reference time of day reflect the opening times of the flowers, opening late and closing at night or in cloudy conditions.